Pressing ring and lens module

A pressing ring, comprising:

• an annular body forming a light through hole;
• a first sheared edge formed on the annular body;
• and
• a second sheared edge formed on the annular body,
• the body comprises an inner side wall around an optical axis and forming the light through hole, an object-side wall extending from an edge of the inner side wall close to an object side in a direction facing away from the optical axis, an image-side wall opposite to the object-side wall and extending from an edge of the inner side wall close to an image side in a direction facing away from the optical axis, and an outer side wall extending from an edge of the object-side wall facing away from the inner side wall to the image-side wall;
• the object-side wall comprises an abutting surface surrounding the inner side wall and connected to the inner side wall, and a glue-dispensing groove surrounding the abutting surface and connected to the abutting surface;
• and each of the first sheared edge and the second sheared edge is located in the glue-dispensing groove.